How To Install Step Flashing Under Existing Siding

Once even a small section of roofing cement fails you ll have a leak.

How to install step flashing under existing siding.

Cover tops of step. Nail through flashing into shingle do not extend flashing above top of shingle and. Nail flashing to roof deck only. Then nail the new l shaped flashing under the builder s felt but above the fascia board.

This flashing is typically field fabricated from a sheet of 26 ga. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Wide and 2 in. Here s how to do it right the first time. You have to work up your roof and cover every single end suitable with shingles. Lay a shingle over the step flashing starting at the roof edge.

Longer than the shingle s exposure. Shingles need to be fastened with nails in the top area and then cover top with another step flashing piece with nails. Cut a piece. Bent into an l shape.

Cut step flashing pieces to be 10 in. Posted march 4 2017 filed under roof installation roof repair maintenance. Every single end should be covered with flashing. Fasten that shingle with two galvanized nails at the.

But it doesn t work that way. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips. How to install step flashing under siding 1. Lay shingles over step flashing from the roof edge.